API Keys

API keys are unique credentials issued to every merchant. While MID is used as an identification used for all exchange correspondence, merchant key is used to encrypt every API request to Paytm and decrypt every response from Paytm. Ensure that you keep the merchant key on server side and should not be shared with anyone. In case API keys are compromised, please reach out to our helpdesk to get new API keys.

MID (Merchant ID) – Unique identifier issued to every merchant.

Merchant Key – This is a unique secret key used for secure encryption of every request. This needs to be kept on server side and should never be shared with anyone.

Industry Type ID – This is part of bank and paymode configuration done wrt to an account.

Website – This parameter is used to support multiple callback URLs to post the transaction response. Each URL needs to be mapped to a website parameter.